I'm trying to understand Lync's topology when it comes to external/public IPs/DNS records.
I get that the Access Edge, Web Conferencing Edge and A/V Edge services allow for the interaction between my internal Lync clients and third-party Lync clients.
I've read that the External Web Services allow Lync to grab address book information, but I don't understand it beyond that.What does this service provide for Lync users?
Based on my limited knowledge, it seems 2 public IPs (minimum) are needed: 1 for the External Web Services and 1 for the External settings using 3 ports (access:5061, a/v:444, web conf.:443).Is that accurate?
If I force all External Settings (access, a/v, web.conf) through a hardware firewall, I'm guessing that I have to enterthe DMZ IPs for these services in the Topology Builder (and not the public IPs).
The only place I'd enter the public IP is in the A/V Edge's 'NAT-enabled public IP' field,right?
The most helpful discussion I've found on this is http://social.technet.microsoft.com/Forums/lync/en-US/54059855-518f-416c-a8f2-41b3242679ec/lync-server-2013-external-access-with-1-public-ip-and-without-reverse-proxy?forum=ocsedge
Thanks in advance,
Greg